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Finding the Fourth Proportional to 193,496.40, 290,244.60 and 185,720.40

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Solution

The fourth proportional to 193,496.40, 290,244.60 and 185,720.40 is: 278,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,496.40 : 290,244.60 = 185,720.40 : x
  2. Step 2: Convert to fraction form
    193,496.40/290,244.60 = 185,720.40/x
  3. Step 3: Cross multiply
    193,496.40x = 290,244.60 × 185,720.40
  4. Step 4: Simplify right side
    193,496.40x = 53,904,343,209.84
  5. Step 5: Solve for x
    x = 53,904,343,209.84/193,496.40
  6. Step 6: Final answer
    x = 278,580.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.